The best replacement for conjunction is disjunction.

The best alternatives to conjunction are rated as following:
★★★★★  disjunction
★★★★  preposition
★★  contraction
★★  opposition
★  connectors
★  connective
★  junction
★  interjection
★  adverb
★  binary fission
★  conjunctive adverb
  conjunctive
  subordinating conjunction
  coordinating conjunction
  connector
  relative pronoun

Your alternative for conjunction is not listed? Suggest!
Speaking about conjunction, one probably shouldn't forget about comma.

Other search terms related to conjunction and their ratings are:
★★★★★ comma
★★ semicolon
You have in mind a companion for conjunction and it is not yet here? Propose!



Google Trends

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conjunction
disjunction
preposition